Home / 642,933.59-963,725.30-216,321.32

Finding the Fourth Proportional to 642,933.59, 963,725.30 and 216,321.32

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Solution

The fourth proportional to 642,933.59, 963,725.30 and 216,321.32 is: 324,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,933.59 : 963,725.30 = 216,321.32 : x
  2. Step 2: Convert to fraction form
    642,933.59/963,725.30 = 216,321.32/x
  3. Step 3: Cross multiply
    642,933.59x = 963,725.30 × 216,321.32
  4. Step 4: Simplify right side
    642,933.59x = 208,474,326,727.13
  5. Step 5: Solve for x
    x = 208,474,326,727.13/642,933.59
  6. Step 6: Final answer
    x = 324,254.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.